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From 4c4d35264fada08b6536425c051fb8e0b05ee86b Mon Sep 17 00:00:00 2001
From: Nikos Mavrogiannopoulos <nmav@redhat.com>
Date: Wed, 24 May 2017 10:46:03 +0200
Subject: [PATCH] ext/status_request: ensure response IDs are properly deinitialized
That is, do not attempt to loop through the array if there is no array
allocated.
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
---
lib/ext/status_request.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/lib/ext/status_request.c b/lib/ext/status_request.c
index f5a46dc..049d852 100644
--- a/lib/ext/status_request.c
+++ b/lib/ext/status_request.c
@@ -69,7 +69,10 @@ typedef struct {
static void deinit_responder_id(status_request_ext_st *priv)
{
-unsigned i;
+ unsigned i;
+
+ if (priv->responder_id == NULL)
+ return;
for (i = 0; i < priv->responder_id_size; i++)
gnutls_free(priv->responder_id[i].data);
@@ -135,6 +138,7 @@ server_recv(gnutls_session_t session,
{
size_t i;
ssize_t data_size = size;
+ unsigned responder_ids = 0;
/* minimum message is type (1) + responder_id_list (2) +
request_extension (2) = 5 */
@@ -153,23 +157,24 @@ server_recv(gnutls_session_t session,
DECR_LEN(data_size, 1);
data++;
- priv->responder_id_size = _gnutls_read_uint16(data);
+ responder_ids = _gnutls_read_uint16(data);
DECR_LEN(data_size, 2);
data += 2;
- if (data_size <= (ssize_t) (priv->responder_id_size * 2))
+ if (data_size <= (ssize_t) (responder_ids * 2))
return
gnutls_assert_val(GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER);
- if (priv->responder_id != NULL)
- deinit_responder_id(priv);
+ deinit_responder_id(priv);
- priv->responder_id = gnutls_calloc(1, priv->responder_id_size
+ priv->responder_id = gnutls_calloc(1, responder_ids
* sizeof(*priv->responder_id));
if (priv->responder_id == NULL)
return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
+ priv->responder_id_size = responder_ids;
+
for (i = 0; i < priv->responder_id_size; i++) {
size_t l;
--
libgit2 0.25.0
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